Xiaomi and Redmi boast fast charging with 300W. Fill the battery in 5 minutes

From 0 to 100% in less than 5 minutes . This is the time needed to fully recharge a 4,100 mAh battery that Xiaomi used to demonstrate its new 300W hyper-fast charge , which also exceeds the previous record of 210W achieved with the Explorer Edition of its Redmi Note 12.

If there is something that we have always demanded of modern smartphones, it is that the battery of the devices last us much longer. Today, the times of those Nokia 3310, Ericsson mobiles and other ‘Dumb Phones’ that, with hardly any screen, allowed the smartphone to be turned on for a little over a week, are far gone.

Xiaomi and Redmi boast fast charging with 300W

It seems that these times are far from coming true again, but at least the brands continue to work so that the battery is not a problem for us as users. And the only thing that can be done is to reduce the charging times to the maximum, without implying putting the cell phone at risk.

From 0 to 100 in 5 minutes

Until now, the maximum charging speed seen on a mobile phone was 240W achieved by realme , a company that belongs to the OPPO/Oneplus group. and that they also bet on this type of novelty that allows us to charge the cell of our phones in just a few minutes.

redmi 300W

Xiaomi said that despite a 43% increase in power , volume and density reach 2.31 W/cm3, demoing a Redmi Note 12 Pro+ with a slightly smaller than standard 4300 battery. mah. The cell managed to get to 20% in just over a minute, reaching 50% in 2 minutes and 12 seconds, and taking just under 5 minutes for a full charge .

During testing, the power meter used to monitor charging speed maxed out at 290W and 280W for a couple of minutes. To be able to sustain this speed without problems, Xiaomi claimed to have used 15C cells, more powerful than the classic 10C ones, with carbon parts instead of graphite, which made it possible to reduce the thickness of the electrodes by 35%.

Xiaomi has also improved the formula of the electrolytes, managing to obtain a higher charge and discharge speed that, as a consequence, releases a smaller amount of heat generated by alternating heatsinks with the cells.

Of course, whenever we talk about these high charging speeds, whether they are those proposed by Xiaomi or those proposed by another firm, doubts about the security of this technology drown us. In this regard, the company said that there are more than 50 functions built into the system that allow it to constantly monitor the current, voltage and temperature of each charging chip.

What we do not know is how many cycles of this recharge the battery can withstand before deteriorating, because if these charging powers affect anything, it is the useful life of the component, considerably reducing it.

At the moment, we do not have more information about this novelty from the Chinese firm or about which devices could be the first to integrate it into, we assume, at the end of this year.